Synology

SNG-DS419slim

4-bay Diskstation, Dual Core 1.33GHz, 512MB DD3L RAM (2.5" drive only),            
Warranty 2 Yrs. Carry-in
- Disk Size : SATA HDD 2.5" (Hot-Swap)
: SATA SSD 2.5" (Hot-Swap)
- USB 3.0 : 2 Ports
- RJ45 1 GbE LAN : 2 Ports

SNG-DS420J

4-bay DiskStation, Quad Core 1.4 GHz, 1GB DDR4 RAM,                     
Warranty 2 Yrs. Carry-in
- Disk Size : SATA HDD 2.5", 3.5"
: SATA SSD 2.5"
- USB 3.0 : 2 Ports
- RJ45 1 GbE LAN : 1 Port

SNG-DS418 

4-bay DiskStation, Quad Core 1.4 GHz, 2GB DDR4 RAM,
Warranty 2 Yrs. Carry-in
- Disk Size : SATA HDD 2.5", 3.5" (Hot-Swap)
: SATA SSD 2.5" (Hot-Swap)
- USB 3.0 : 2 Ports
- RJ45 1 GbE LAN : 2 Ports

SNG-DS420PLUS                                                                                                                          

4-bay DiskStation, Dual Core 2.0 GHz (turbo to 2.9 GHz),
2GB DDR4 RAM (Max. 6GB), Warranty 3 Yrs. Carry-in (ต่อประกันได้เป็น 5 ปี )
- Disk Size : SATA HDD 2.5", 3.5" (Hot-Swap)
: SATA SSD 2.5" (Hot-Swap)
: M.2 2280 NVMe SSD x 2 Slots Built-in
- USB 3.0 : 2 Ports
- RJ45 1 GbE LAN : 2 Ports

SNG-DS920PLUS

4-bay DiskStation (up to 9-bay), Quad Core 2.0 GHz (turbo to 2.7 GHz),                      
4GB DDR4 RAM (Max. 8GB),Warranty 3 Yrs. Carry-in (ต่อประกันได้เป็น 5 ปี)
- Disk Size : SATA HDD 2.5", 3.5" (Hot-Swap)
: SATA SSD 2.5" (Hot-Swap)
: M.2 2280 NVMe SSD x 2 Slots Built-in
- USB 3.0 : 2 Ports
- RJ45 1 GbE LAN : 2 Ports

SNG-DS1520PLUS

5-bay DiskStation (up to 15-bay), Quad Core 2.0 GHz (turbo to 2.7 GHz),
8GB DDR4 RAM, Built-in two M.2 NVMe SSD slots,
Warranty 3 Yrs. Carry-in (ต่อประกันได้เป็น 5 ปี)
- Disk Size : SATA HDD 2.5", 3.5" (Hot-Swap)
: SATA SSD 2.5" (Hot-Swap)
: M.2 2280 NVMe SSD x 2 Slots Built-in
- USB 3.0 : 2 Ports
- RJ45 1 GbE LAN : 4 Ports